UA2421 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA2421, which currently operates between the airports of Las Vegas - Las Vegas Harry Reid International Airport (Airport Code LAS) and San Francisco - San Francisco International Airport (Airport Code SFO).
This flight data pertains specifically to the flight's details for Thursday, December 18, 2025.
Table of contents:
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA2421
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA2421
UA2421 On Time performance:
85
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays Flight Status
UA2421 United Airlines to San Francisco
This flight is not scheduled for December 18, 2025.
This flight is not scheduled for December 18, 2025.
Departure
Las Vegas (LAS)
December 15, 2025
Las Vegas Harry Reid International Airport
Arrival
San Francisco (SFO)
December 15, 2025
San Francisco International Airport
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.las-vegas-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.
Codeshare Flights
This flight is shared with other airlines, this means that these other flights are the same:
- AC5404 - Air Canada
- LH9415 - Lufthansa
- NZ9240 - Air New Zealand
- VA8124 - Virgin Australia
Additional Information
Which is the frequency of flight UA2421?
The flight UA2421 is scheduled to flight on daily basis.
Which is the distance of flight UA2421?
The distance between the two airports is 414 miles.
Which is the flight time of flight UA2421?
The scheduled flight time gate to gate is: 01:44 hours.
The real flight time gate to gate on average is: 01:50 hours.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
The flight UA2421 is scheduled to flight on daily basis.
Which is the distance of flight UA2421?
The distance between the two airports is 414 miles.
Which is the flight time of flight UA2421?
The scheduled flight time gate to gate is: 01:44 hours.
The real flight time gate to gate on average is: 01:50 hours.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
Alternative Flights
The following airlines serves the same route between Las Vegas and San Francisco:
Alaska Airlines
- Flight Number: AS570. (On Time performance: 74 - Average Delay: 29 minutes)
- Flight Number: AS613. (On Time performance: 86 - Average Delay: 8 minutes)
- Flight Number: AS634. (On Time performance: 70 - Average Delay: 14 minutes)
- Flight Number: AS718. (On Time performance: 82 - Average Delay: 11 minutes)
Frontier Airlines
- Flight Number: F93019. (On Time performance: 79 - Average Delay: 11 minutes)
- Flight Number: F93801. (On Time performance: 72 - Average Delay: 23 minutes)
- Flight Number: F94401. (On Time performance: 48 - Average Delay: 40 minutes)
United Airlines
- Flight Number: UA1168. (On Time performance: 47 - Average Delay: 26 minutes)
- Flight Number: UA1267. (On Time performance: 56 - Average Delay: 22 minutes)
- Flight Number: UA1355. (On Time performance: 97 - Average Delay: 1 minutes)
- Flight Number: UA1799. (On Time performance: 76 - Average Delay: 12 minutes)
- Flight Number: UA2046. (On Time performance: 67 - Average Delay: 38 minutes)
- Flight Number: UA2047. (On Time performance: 70 - Average Delay: 14 minutes)
- Flight Number: UA2356. (On Time performance: 56 - Average Delay: 15 minutes)
- Flight Number: UA2423. (On Time performance: 62 - Average Delay: 12 minutes)
- Flight Number: UA2439. (On Time performance: 100 - Average Delay: 3 minutes)
- Flight Number: UA365. (On Time performance: 54 - Average Delay: 23 minutes)
- Flight Number: UA574. (On Time performance: 77 - Average Delay: 14 minutes)
Southwest Airlines
- Flight Number: WN2176. (On Time performance: 36 - Average Delay: 29 minutes)
- Flight Number: WN3297. (On Time performance: 67 - Average Delay: 16 minutes)
- Flight Number: WN606. (On Time performance: 63 - Average Delay: 17 minutes)
- Flight Number: WN966. (On Time performance: 36 - Average Delay: 39 minutes)
Alaska Airlines
- Flight Number: AS570. (On Time performance: 74 - Average Delay: 29 minutes)
- Flight Number: AS613. (On Time performance: 86 - Average Delay: 8 minutes)
- Flight Number: AS634. (On Time performance: 70 - Average Delay: 14 minutes)
- Flight Number: AS718. (On Time performance: 82 - Average Delay: 11 minutes)
Frontier Airlines
- Flight Number: F93019. (On Time performance: 79 - Average Delay: 11 minutes)
- Flight Number: F93801. (On Time performance: 72 - Average Delay: 23 minutes)
- Flight Number: F94401. (On Time performance: 48 - Average Delay: 40 minutes)
United Airlines
- Flight Number: UA1168. (On Time performance: 47 - Average Delay: 26 minutes)
- Flight Number: UA1267. (On Time performance: 56 - Average Delay: 22 minutes)
- Flight Number: UA1355. (On Time performance: 97 - Average Delay: 1 minutes)
- Flight Number: UA1799. (On Time performance: 76 - Average Delay: 12 minutes)
- Flight Number: UA2046. (On Time performance: 67 - Average Delay: 38 minutes)
- Flight Number: UA2047. (On Time performance: 70 - Average Delay: 14 minutes)
- Flight Number: UA2356. (On Time performance: 56 - Average Delay: 15 minutes)
- Flight Number: UA2423. (On Time performance: 62 - Average Delay: 12 minutes)
- Flight Number: UA2439. (On Time performance: 100 - Average Delay: 3 minutes)
- Flight Number: UA365. (On Time performance: 54 - Average Delay: 23 minutes)
- Flight Number: UA574. (On Time performance: 77 - Average Delay: 14 minutes)
Southwest Airlines
- Flight Number: WN2176. (On Time performance: 36 - Average Delay: 29 minutes)
- Flight Number: WN3297. (On Time performance: 67 - Average Delay: 16 minutes)
- Flight Number: WN606. (On Time performance: 63 - Average Delay: 17 minutes)
- Flight Number: WN966. (On Time performance: 36 - Average Delay: 39 minutes)
Punctuality and delays
We have gathered data from recent months and present below an analysis of how timely the flights have been.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions
In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from December 02, 2025 to December 14, 2025, we have obtained these figures.
Total number of flights: 13
On Time: 11 ( 85 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 1 ( 8 % )
Major Delay: 1 ( 8 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )
Average Delay: 13 minutes.
Total number of flights: 13
On Time: 11 ( 85 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 1 ( 8 % )
Major Delay: 1 ( 8 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )
Average Delay: 13 minutes.
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Last Past Flights UA2421
Date
Departure
Arrival
Duration
Aircraft
Status
Tuesday
16 December
16 December
09:57 am
Las Vegas (LAS)
Las Vegas (LAS)
12:08 pm
San Francisco (SFO)
San Francisco (SFO)
02h 11min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Monday
15 December
15 December
10:21 am
Las Vegas (LAS)
Las Vegas (LAS)
12:27 pm
San Francisco (SFO)
San Francisco (SFO)
02h 06min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Sunday
14 December
14 December
10:01 am
Las Vegas (LAS)
Las Vegas (LAS)
11:56 am
San Francisco (SFO)
San Francisco (SFO)
01h 55min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Saturday
13 December
13 December
09:55 am
Las Vegas (LAS)
Las Vegas (LAS)
11:40 am
San Francisco (SFO)
San Francisco (SFO)
01h 45min
Boeing 737-800
Boeing 737-800
Landed - On-time
Friday
12 December
12 December
09:57 am
Las Vegas (LAS)
Las Vegas (LAS)
11:38 am
San Francisco (SFO)
San Francisco (SFO)
01h 41min
Boeing 737-800
Boeing 737-800
Landed - On-time
Thursday
11 December
11 December
09:54 am
Las Vegas (LAS)
Las Vegas (LAS)
11:33 am
San Francisco (SFO)
San Francisco (SFO)
01h 39min
Boeing 737-800
Boeing 737-800
Landed - On-time
Wednesday
10 December
10 December
09:58 am
Las Vegas (LAS)
Las Vegas (LAS)
11:36 am
San Francisco (SFO)
San Francisco (SFO)
01h 38min
Boeing 737-800
Boeing 737-800
Landed - On-time
Tuesday
09 December
09 December
09:52 am
Las Vegas (LAS)
Las Vegas (LAS)
12:03 pm
San Francisco (SFO)
San Francisco (SFO)
02h 11min
Boeing 737-800
Boeing 737-800
Landed - On-time
Monday
08 December
08 December
10:03 am
Las Vegas (LAS)
Las Vegas (LAS)
11:56 am
San Francisco (SFO)
San Francisco (SFO)
01h 53min
Boeing 737-800
Boeing 737-800
Landed - On-time
Sunday
07 December
07 December
09:58 am
Las Vegas (LAS)
Las Vegas (LAS)
11:40 am
San Francisco (SFO)
San Francisco (SFO)
01h 42min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
